HalRequestIpi

__int64 __fastcall HalRequestIpi(int a1, _WORD *a2){
  ULONG_PTR BugCheckParameter4; 
  __int64 result; 
  BugCheckParameter4 = a1;
  result = HalRequestIpiSpecifyVector(a1, a2, 0xE1u);
  if( (int)result < 0 )
    KeBugCheckEx(0x5Cu, 0x201ui64, HalpInterruptController, (int)result, BugCheckParameter4);
  return result;
}

Referenced by:

KiIpiSendRequest
PoExecuteIdleCheck
PoIdle
PoInitiateProcessorWake
PpmIdleExecuteTransition
PpmUnlockProcessors